EP2400056A1 - Dispositif de traitement des surfaces de roulement de rails par meulage périphérique à l'aide d'un profilé de meulage réglable - Google Patents

Dispositif de traitement des surfaces de roulement de rails par meulage périphérique à l'aide d'un profilé de meulage réglable Download PDF

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Publication number
EP2400056A1
EP2400056A1 EP10167546A EP10167546A EP2400056A1 EP 2400056 A1 EP2400056 A1 EP 2400056A1 EP 10167546 A EP10167546 A EP 10167546A EP 10167546 A EP10167546 A EP 10167546A EP 2400056 A1 EP2400056 A1 EP 2400056A1
Authority
EP
European Patent Office
Prior art keywords
grinding
rail
frame
longitudinal direction
chassis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10167546A
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German (de)
English (en)
Inventor
David B.Eng. Krüger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vossloh High Speed Grinding GmbH
Original Assignee
Vossloh High Speed Grinding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vossloh High Speed Grinding GmbH filed Critical Vossloh High Speed Grinding GmbH
Priority to EP10167546A priority Critical patent/EP2400056A1/fr
Publication of EP2400056A1 publication Critical patent/EP2400056A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding

Definitions

  • the present invention relates to a device for machining the running surfaces of rails by peripheral grinding with a rail wheels for driving the rail having chassis and at least one fixed to the chassis, undeliverable to the tread of the rail grinding rack, which individually on each one to the rail longitudinal direction enclosing an acute angle Rotation axis freely rotatably mounted has the grinding wheels for peripheral grinding.
  • the grinding wheels and their drives are suspended in a frame which allows a suitable pivoting movement over the rail head.
  • the grinding wheels can be raised and lowered, either to start or to interrupt the grinding process, or to compensate for the progressive wear of the grinding wheels.
  • the profile of the rail can be selectively changed, or profile errors can be corrected in the rail.
  • the pivoting angle of the grinding station is limited relative to the rail, because at a critical angle, the drives the plane, which is spanned by the rail top edges, pierced and run the risk of railroad crossing or some track switching means collide. Therefore, they must be removed before processing in a complex manner and then reinstalled.
  • the processing of the rail surface with grinding wheels whose peripheral surface is pressed onto the rail head is much rarer and is today z. B. used in rail milling for reworking milled rails.
  • the grinding wheel is also driven by a motor and that for rotation about an axis perpendicular to the rail longitudinal axis.
  • the peripheral surface of the grinding wheel takes after a short time on the curved shape of the rail head, whereby a continuously curved grinding contour without facets is possible.
  • the grinding wheel is as wide as the rail head.
  • a precise control, where the removal is achieved, is as difficult as a targeted change of the rail profile. This is because the grinding wheel takes the form of the rail and not vice versa.
  • the achievable feed rates are even lower than when grinding with cup wheels.
  • the processing takes place profile-free, ie without protruding into the track construction area machine part, the expansion of level crossings and track switching means is therefore not required.
  • a very new grinding process is the grinding with freely rotating, mounted on a non - motor driven rotary axis, as in the EP 0 708 205 A1 is described.
  • peripheral grinding bodies are pulled over the rail under an acute angle of 45 ° to 60 ° rotated about the vertical axis without their own drive, whereby they begin to rotate. Due to the inclination takes place between the peripheral surface of the grinding wheel and the rail surface, a relative movement, which triggers a decision of the rail with increasing towing speed.
  • the rail grinding usually takes place at a feed rate in the range of 80 km / h, the power for the drive of the grinding body comes from the traction power.
  • the grinding wheels are arranged in a grinding rack in which they can be raised or lowered and pressed and pressed together in a direction substantially perpendicular to the rail surface. Depending on the size of the contact pressure, the removal varies.
  • the peripheral surface of the individual abrasive body also adapts to the shape of the rail. Due to the inclination, the contact line of the grinding body with the rail takes on the shape of a long "S".
  • the width of the ground track is in accordance with the cosine of the angle by which the abrasive body is rotated about the vertical axis, narrower than the width of the abrasive body.
  • the grinding wheels arranged in fixed and different orientation in racks and pressed at different points of attack against the rail head. Their contact pressure is according to the contour of the rail profile. In this way, different tracks are processed on the rail head.
  • the grinding marks were thus previously set for a grinding rack firmly.
  • One set of grinding wheels in a first grinding rack processes the area of the running edge in this solution and is accordingly pressed from an oblique position
  • another set of grinding bodies in a second grinding rack independent of the first grinding rack processes the area the driving surface.
  • the abrasive particles are pressed approximately vertically from above on the rail head.
  • the special feature of the device according to the invention therefore lies in the fact that the grinding frame is not alone, as in the prior art, along a feed direction for feeding the grinding wheels to the rails in transverse to the rail longitudinal direction always the same position or lifting off the Rails is movable, but that a mobility of the grinding frame is now also given that there is the possibility to adjust the position at which attack the grinding wheels located in the grinding frame on the rail surface, transverse to the rail longitudinal direction and thus with a grinding rack and a Arrangement of grinding wheels to set different grinding positions and to create micrographs.
  • the invention consists in at least one further degree of freedom of movement in the movable mounting of the grinding frame To integrate, in addition to the still required possibility of delivery or lifting this movement component of the sliding frame transverse to the longitudinal direction of the rail and across the vertical, which ultimately leads to a change in the attack position of the abrasive on the rail surface allows.
  • corresponding means for displacing the grinding rack are provided, which should in particular enable automatic position adjustment.
  • Such means may be for example motors, hydraulic and pneumatic cylinders.
  • manually operated means such as over fine thread to be adjusted mechanisms are possible, however, automatically adjustable means are clearly preferred because they allow a faster and thus more flexible adjustment of the position of the abrasive on the rail surface and thus the microsection.
  • the position at which the grinding bodies engage the running surface of the rails, in a direction transverse to the rail longitudinal direction is continuously variable and the grinding rack is arranged correspondingly displaceable on the chassis to achieve this stepless adjustability.
  • the device is further configured as stated in claim 4, namely that the means for displacing the grinding frame are adapted to hold while maintaining a pressing force applied to the grinding frame substantially perpendicular to the surface of the running surface of the rails a movement of the chassis can cause a shift of the grinding rack for changing the transversely to the longitudinal direction of the rail seen position at which the grinding wheels engage the tread of the rails, can be made with advantage during a processing crossing and without stopping the device, an adjustment of the processing areas For example, to react to special damage, injuries or changes in the rail in locally different positions or to make a reprofiling of the rail profile can.
  • the device for machining the running surfaces of rails will not only have a sanding frame, but typically at least one per over-run rail of the track in order to be able to grind both rails in one machining operation.
  • a grinding rack with grinding bodies arranged thereon will be provided per rail, but at least two, possibly even more, to work with each of the grinding racks a different grinding track on the rail surface and thus in one pass the entire running surface of the rail (ie inclusive the lying in the transition to the side regions of the rail driving edges and lying on the top of the rails running surfaces).
  • the device according to the invention in summary, has the particular advantage that, unlike the previously known, generic devices not a rigid and unchangeable grinding image, which could be changed slightly by varying the pressing forces alone, but rather a high A degree of variation is possible to adapt the grinding pattern to the respective requirements and thus to allow an even more optimal grinding of the rails in the generic method own high processing speed.
  • FIG. 1 is initially in a representation according to the FIG. 5 of the EP 0 708 205 A1 a section of a device for machining the running surfaces of rails by peripheral grinding by means of oblique position due to the resulting frictional force driven during driving abrasive body shown.
  • this method which is also the embodiment of the invention is based on the EP 0 708 205 A1 and the representation given there, this is - as far as nothing else is described below - also for the inventive development validity.
  • FIG. 1 shown in the side view device according to the prior art are on a chassis 1, which is connected to wheels 2, which roll along a rail 3, arranged per rail a total of two grinding racks 4.
  • rotating grinding wheels 6 are arranged freely rotatable on axes of rotation, here five grinding wheels per grinding rack 4.
  • the arrangement of the grinding wheels 6 is such that the rotational axes 5 form an acute angle to the longitudinal extent of the rail 3.
  • the grinding racks 4 are arranged vertically adjustable on the chassis 1 of the device along a single possible direction of movement, so that they can be lowered along this direction of movement, which can also be referred to as a delivery direction, and set against the rail 3.
  • the grinding frame 4 In the lowered position then, as shown for the grinding frame 4 shown on the left in the figure, the grinding wheels 6 abut with a peripheral surface 7 on a running surface 8 of the rail 3.
  • the sanding frame 4 In the figure to the right, the sanding frame 4 is shown in a raised state.
  • the grinding frame 4 In the lowered and employed to the rail 3 state, the grinding frame 4 is applied with suitable, unspecified means here, directed against the tread 8 pressing force to press the grinding wheel 6 against the tread 8 of the rail 3.
  • suitable, unspecified means here directed against the tread 8 pressing force to press the grinding wheel 6 against the tread 8 of the rail 3.
  • Fig. 2 are two variants in a view across the track shown schematically, as shown in the EP 1 460 176 A1 as a progression to the original in the EP 0 708 205 A1 disclosed idea.
  • grinding wheels 6 were provided for processing a rail 3 arranged in separate grinding racks one behind the other, which are pressed against the rail surface in different feed and engagement positions viewed transversely to the rail longitudinal direction so as to obtain a combined grinding pattern and grinding along sliding paths offset transversely to the rail longitudinal direction ,
  • the positions of the grinding racks 4 arranged one behind the other in the device are shown diagrammatically next to one another on the surface of the rails 3.
  • Fig. 3 an enlarged cross-section through a rail 3 is shown. Above its tread, the distribution of the grinding abrasion in dotted outlined areas is shown, first immediately above the rail of the individual abrasion, as he from the Fahrkanten- (in Fig. 3 shown on the left, reference numeral 9) and the tread grinding wheels 6 (in Fig. 3 right, reference numeral 10) is achieved.
  • the grinding profile 9 produced by the grinding body 6 attached to the running edge and the grinding profile 10 achieved by the grinding body 6 placed on the running surface have different thickness profiles which correspond to the extent of the removal.
  • the processing carried out in succession with the two differently set grinding wheels 6 results in a resulting grinding profile 11, which is shown above the two individual grinding profiles 9 and 10.
  • This resulting grinding profile 11 is, as already mentioned, fixed in the prior art and can possibly be slightly changed and adapted by varying the contact pressure.
  • Fig. 4 is now schematically shown along more than one degree of freedom displaceable grinding frame 4, which allows a change in the attack position of the grinding wheel 6 on the inner surface transverse to the rail longitudinal direction.
  • actuators 12 which may be hydraulic or pneumatic cylinders, for example, the grinding frame 4 is pivotally attached via hinged deposits on the chassis, so that there are indicated by dashed lines different pivot positions.
  • This embodiment therefore allows one and the same grinding frame 4 to position and press the grinding wheels 6 at different engagement positions transversely to the longitudinal direction of the rail 3, so as to obtain different grinding profiles.
  • Such a variation is possible steplessly in the illustrated basic illustration and preferably so as to set the position and orientation of the processing line, that is to say the grinding profile, to be highly variable.
  • the grinding frame 4 can also be raised as in the prior art, lowered in the direction of the rail 3 and pressed with the grinding bodies 6 onto the running surface of the rail 3.
  • the possibilities of movement of the grinding frame 4 and thus the with it Rotary axes rigidly fixed grinding wheel 6 receives only one more degree of freedom, namely the tilting or pivoting transversely to the rail longitudinal direction.
  • the upper axis of the grinding wheel is correspondingly inclined (the feed direction adapted) in order to always set the pressure force on the grinding wheels 6 perpendicular to the surface of the running surface in the machining area.
  • the region to be machined can preferably be selected and a corresponding grinding profile can be set by positioning the grinding frame 4 differently and thus the grinding body 6 arranged thereon, transversely to the rail longitudinal direction. Also, to counteract a gradual change in the rail head profile, this can be reprofiled by appropriate adjustment.
  • the device according to the invention can have a corresponding measurement technique which detects the current profile of the rail 3 in the region of its tread 8 and readjust the settings of the sanding frame 4 during the crossing in order to adjust the sanding profile in a spatially resolved and demand-dependent manner for reprofiling to the optimum desired profile
  • the actuators 12 can change the grinding rack for changing the position of the grinding wheels 6 in a direction transverse to the longitudinal course of the rail while maintaining the pressing force and driving the device.
  • FIGS. 6a to 6c shows another possibility of the design and lever guide, which also works with three independent rotational movements and allows the adjustment transversely to the longitudinal direction of the rail.
  • actuators 12 are connected to a lever-like linkage to which the grinding frame 4 is suspended, again in this case the grinding frame 4 can be pivoted about a drive mechanism, not shown in its attachment to the lever arm, for example via a stepper motor or the like.
  • this construction allows a lowering of a in Fig. 6a shown raised position and a change in the attack position from a position in which the grinding wheel 6 engages near the driving edge (see. Fig. 6b ) in the direction of a position in which the grinding wheel 6 operates on the upper running surface (cf. Fig. 6c ).
  • FIGS. 7a to b Another way to obtain the required degrees of freedom for the movement of the grinding frame 4, is in the FIGS. 7a to b shown.
  • a combination of two independent linear movements indicated by the straight double arrows
  • a further independent movement in the form of a rotary motion indicated by the curved double arrow
  • both the Zustellterrorism done by exploitation the possibility of linear movement in the vertical direction as well as an adjustment of the position of the grinding wheel 6 on the rail surface and the position of the vertical axis by combining all three movements.
  • Fig. 8 Finally, another variant is shown, which also uses, this time with a different lever design, a combination of two independent linear movements and a rotational movement, the rotational movement is this time a coupled and thus not self-propelled movement.
  • the grinding frame 4 is lowered with the grinding wheels 6 and then pivoted by appropriately controlled triggering of the independent linear movements over the surface rail 3.
  • the coupled rotary motion contains a type of slotted guide which positively tilts the grinding rack 4 according to the requirements, while it is displaced transversely to the rail longitudinal direction, so that the grinding wheels 6 actuate different grinding positions.
  • the feed mechanism for the grinding frame 4 can also be pivoted in a slotted guide, which corresponds to the contour of the rail head. Changing the sanding profile or its position by displacing the grinding wheel 6 transversely to the rail longitudinal direction with the alignment of the contact angle is then coupled here by methods along a non-linear axis (the backdrop). Lifting / lowering is an independent mechanism.
  • a suitable stepper motor can therefore be used, on the one hand, to turn the revolver magazine (eg in 90 ° increments) and, on the other hand, to align the abrasives with the position of its vertical axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP10167546A 2010-06-28 2010-06-28 Dispositif de traitement des surfaces de roulement de rails par meulage périphérique à l'aide d'un profilé de meulage réglable Withdrawn EP2400056A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10167546A EP2400056A1 (fr) 2010-06-28 2010-06-28 Dispositif de traitement des surfaces de roulement de rails par meulage périphérique à l'aide d'un profilé de meulage réglable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10167546A EP2400056A1 (fr) 2010-06-28 2010-06-28 Dispositif de traitement des surfaces de roulement de rails par meulage périphérique à l'aide d'un profilé de meulage réglable

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EP2400056A1 true EP2400056A1 (fr) 2011-12-28

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EP10167546A Withdrawn EP2400056A1 (fr) 2010-06-28 2010-06-28 Dispositif de traitement des surfaces de roulement de rails par meulage périphérique à l'aide d'un profilé de meulage réglable

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258213A (zh) * 2019-06-28 2019-09-20 苏州睿友智能装备有限公司 机器人化钢轨打磨车
CN110644304A (zh) * 2019-11-14 2020-01-03 义乌轩久铁路技术有限公司 一种可升降且多角度打磨铁轨装置
CN111455753A (zh) * 2020-04-23 2020-07-28 邝文建 一种柔性钢轨打磨装置及钢轨打磨车
CN113389098A (zh) * 2020-03-11 2021-09-14 福斯罗轨道维护有限责任公司 用于将加工工具相对于导轨定位的调节装置
RU2759298C1 (ru) * 2021-02-12 2021-11-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет путей сообщений" (СГУПС) Способ обработки поверхности головки рельса и устройство для его осуществления

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906872A (en) * 1931-06-24 1933-05-02 Perazzoll Henry Railway track grinder
US1923020A (en) * 1932-10-04 1933-08-15 Cyril A Fox Method of grinding track rails
CH549693A (fr) * 1970-03-20 1974-05-31 Scheuchzer Fredy Procede pour le meulage de rails et installation pour sa mise en oeuvre.
EP0031480A1 (fr) * 1979-12-31 1981-07-08 Speno International S.A. Dispositif de meulage pour le reprofilage en voie et en continu d'un rail d'une voie ferrée
EP0708205A1 (fr) 1994-10-20 1996-04-24 Josef Dipl.-Ing. Pomikacsek Procédé et dispositif de traitement des surfaces de roulement de rails par rectification tangentielle
EP0843043A1 (fr) * 1996-11-12 1998-05-20 Mecno S.R.L. Machine de meulage tangentiel
EP1460176A1 (fr) 2003-03-20 2004-09-22 Stahlberg Roensch GmbH & Co. KG Dispositif pour reprofiler un rail par meulage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906872A (en) * 1931-06-24 1933-05-02 Perazzoll Henry Railway track grinder
US1923020A (en) * 1932-10-04 1933-08-15 Cyril A Fox Method of grinding track rails
CH549693A (fr) * 1970-03-20 1974-05-31 Scheuchzer Fredy Procede pour le meulage de rails et installation pour sa mise en oeuvre.
EP0031480A1 (fr) * 1979-12-31 1981-07-08 Speno International S.A. Dispositif de meulage pour le reprofilage en voie et en continu d'un rail d'une voie ferrée
EP0708205A1 (fr) 1994-10-20 1996-04-24 Josef Dipl.-Ing. Pomikacsek Procédé et dispositif de traitement des surfaces de roulement de rails par rectification tangentielle
EP0843043A1 (fr) * 1996-11-12 1998-05-20 Mecno S.R.L. Machine de meulage tangentiel
EP1460176A1 (fr) 2003-03-20 2004-09-22 Stahlberg Roensch GmbH & Co. KG Dispositif pour reprofiler un rail par meulage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258213A (zh) * 2019-06-28 2019-09-20 苏州睿友智能装备有限公司 机器人化钢轨打磨车
CN110644304A (zh) * 2019-11-14 2020-01-03 义乌轩久铁路技术有限公司 一种可升降且多角度打磨铁轨装置
CN113389098A (zh) * 2020-03-11 2021-09-14 福斯罗轨道维护有限责任公司 用于将加工工具相对于导轨定位的调节装置
EP3879032A1 (fr) * 2020-03-11 2021-09-15 Vossloh Rail Maintenance GmbH Dispositif de réglage permettant de positionner un outil d'usinage par rapport à un rail
CN111455753A (zh) * 2020-04-23 2020-07-28 邝文建 一种柔性钢轨打磨装置及钢轨打磨车
RU2759298C1 (ru) * 2021-02-12 2021-11-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет путей сообщений" (СГУПС) Способ обработки поверхности головки рельса и устройство для его осуществления

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